Easily openable container closure having a shell and a sealing m

Details Easily openable container closure having a shell and a sealing m Easily openable container closure having a shell and a sealing m

1979-03-01

1980-04-15

Hall, George T.

Bottles and jars

Closures

Frangible member or portion

B65D 4142

Patent

active

041979567

ABSTRACT:
An easily openable container closure comprising (1) a shell of a unitary structure including a top and a cylindrical skirt, said top having an annular top surface portion leading to the upper end of the skirt and a pull ring connected to a part of the inner peripheral edge of the annular top surface portion through a linking piece, and the annular top surface portion and the skirt having a pair of breaking weakened lines formed along the phantom lines extending from both side edges of the linking piece, and (2) a sealing member positioned within the shell for closing an opening present in the top surface of the shell. The annular top surface portion of the shell at least includes a first annular portion extending inwardly from the upper end of the skirt and a second annular portion extending downwardly and inwardly in an inclined manner from the first annular portion. The linking piece extending inwardly from a part of the inner peripheral edge of the annular top surface portion and the pull ring extending inwardly from the inside end of the linking piece are located at a lower level than the uppermost surface of the annular top surface portion.

REFERENCES:
patent: 3596790 (1971-08-01), Leftault, Jr.
patent: 3866782 (1975-02-01), Westfall
patent: 3920142 (1975-11-01), Vandreleck et al.

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